North America Native Plant

Cleveland’s Cryptantha

Botanical name: Cryptantha clevelandii var. florosa

USDA symbol: CRCLF

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Cryptantha hispidissima Greene (CRHI2)   

Cleveland’s Cryptantha: A Little-Known California Native Annual Meet Cleveland’s cryptantha (Cryptantha clevelandii var. florosa), one of California’s more elusive native wildflowers. This petite annual belongs to the borage family and represents a fascinating example of how specialized some of our native plants can be. While you won’t find this one ...

Cleveland’s Cryptantha: A Little-Known California Native Annual

Meet Cleveland’s cryptantha (Cryptantha clevelandii var. florosa), one of California’s more elusive native wildflowers. This petite annual belongs to the borage family and represents a fascinating example of how specialized some of our native plants can be. While you won’t find this one at your typical garden center, it’s worth knowing about if you’re passionate about California’s botanical diversity.

What Makes Cleveland’s Cryptantha Special?

Cleveland’s cryptantha is a true California native, found exclusively within the Golden State’s borders. As an annual forb, this herbaceous plant completes its entire life cycle in a single growing season, making it quite different from the perennial natives many gardeners are familiar with. The plant lacks any significant woody tissue, keeping it firmly in the wildflower category that many native plant enthusiasts adore.

This variety is also known by the botanical synonym Cryptantha hispidissima Greene, which gives you a hint about one of its characteristics – hispidissima suggests it’s quite hairy or bristly, a common trait among plants in the Cryptantha genus.

Should You Grow Cleveland’s Cryptantha?

Here’s where things get interesting – and a bit challenging. Cleveland’s cryptantha falls into that category of native plants that are more about conservation and botanical appreciation than mainstream gardening. Here’s what you should consider:

  • Rarity factor: This isn’t a plant you’ll easily source, and detailed growing information is quite limited
  • Annual nature: Unlike perennial natives that establish and return year after year, you’d need to replant or rely on self-seeding
  • Specialized habitat: Most Cryptantha species have very specific growing requirements that can be difficult to replicate in typical garden settings
  • Conservation value: Growing rare California natives helps preserve genetic diversity

Growing Conditions and Care

While specific growing information for this variety is limited, we can make educated guesses based on other Cryptantha species and California annual wildflowers:

  • Climate: Adapted to California’s Mediterranean climate patterns
  • Soil: Likely prefers well-draining soils, possibly sandy or rocky
  • Water: Probably drought-tolerant once established, following California’s natural rainfall patterns
  • Sun exposure: Most likely thrives in full sun conditions

Alternative Native Options

If Cleveland’s cryptantha has caught your interest but seems too challenging to source or grow, consider these more readily available California native annuals:

  • California poppies (Eschscholzia californica)
  • Clarkia species
  • Baby blue eyes (Nemophila menziesii)
  • Lupine species

The Bottom Line

Cleveland’s cryptantha represents the wonderful complexity of California’s native flora. While it may not be the easiest plant to incorporate into your garden, it serves as a reminder of how much botanical diversity exists right in our own backyards. If you’re a dedicated native plant enthusiast with experience growing challenging annuals, and you can source seeds responsibly, it could be an interesting addition to a specialized wildflower collection.

For most gardeners, however, focusing on the many other beautiful and more readily available California native annuals might be a more practical approach to supporting local ecosystems while creating a stunning garden display.

Cleveland’s Cryptantha

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Lamiales

Family

Boraginaceae Juss. - Borage family

Genus

Cryptantha Lehm. ex G. Don - cryptantha

Species

Cryptantha clevelandii Greene - Cleveland's cryptantha

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA